CVE-2026-10680 Out-of-bounds access in Zephyr BR/EDR L2CAP configuration request handling via `uint16_t` length underflow

The Classic BR/EDR L2CAP signaling handlers l2capbrconfreq and l2capbrconfrsp in subsys/bluetooth/host/classic/l2capbr.c validated the minimum command size against buf-len the bytes remaining in the whole received PDU instead of len the per-command data length from the L2CAP signaling header...

kernel: bluetooth: buffer overflow in l2cap config request

Integer underflow in the l2capconfigreq function in net/bluetooth/l2capcore.c in the Linux kernel before 3.0 allows remote attackers to cause a denial of service heap memory corruption or possibly have unspecified other impact via a small command-size value within the command header of a Logical...